JP2014025456A - Portable engine generator - Google Patents
Portable engine generator Download PDFInfo
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- JP2014025456A JP2014025456A JP2012168349A JP2012168349A JP2014025456A JP 2014025456 A JP2014025456 A JP 2014025456A JP 2012168349 A JP2012168349 A JP 2012168349A JP 2012168349 A JP2012168349 A JP 2012168349A JP 2014025456 A JP2014025456 A JP 2014025456A
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- Prior art keywords
- negative pressure
- engine
- engine generator
- portable
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/021—Control of components of the fuel supply system
- F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
- F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
- F01M11/065—Position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
- F02B2063/046—Handles adapted therefor, e.g. handles or grips for movable units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
本発明は携帯型エンジン発電機に関し、特に、ＬＰＧ等のガスボンベから供給される燃焼用ガスによって稼働する携帯型ガスエンジン発電機における燃料系システムのレイアウト構造に関する。 The present invention relates to a portable engine generator, and more particularly to a layout structure of a fuel system in a portable gas engine generator operated by a combustion gas supplied from a gas cylinder such as an LPG.
ガスエンジン発電機は、ガスを燃料として稼働するエンジン、エンジン出力により発電する発電機、エンジンにガス燃料を供給する燃料系システム、エンジンから排気ガスを排出する排気系システムを備えて構成されている。
従来、携帯型ガスエンジン発電機における燃料系システムは、例えば、ガスボンベ等からの減圧されたガス燃料を供給するための手動燃料コック、ガス燃料をエンジン側へ供給するための開閉弁、ガス燃料を加温してガス化する気化装置（ペーパーライザ）、供給ガスと空気を混合するミキサー、ミキサーへの燃料供給圧を一定に調圧するゼロガバナで構成し、開閉弁において負圧コックが一体化される構造とすることで、エンジンのクランクケース負圧により開弁させ、エンジン稼働時のみガスがエンジン側に供給されるように構成されている。
The gas engine generator includes an engine that operates using gas as a fuel, a generator that generates power using engine output, a fuel system that supplies gas fuel to the engine, and an exhaust system that discharges exhaust gas from the engine. .
Conventionally, a fuel system in a portable gas engine generator includes, for example, a manual fuel cock for supplying decompressed gas fuel from a gas cylinder, an on-off valve for supplying gas fuel to the engine side, and gas fuel. It consists of a vaporizer (paper riser) that heats and gasifies, a mixer that mixes supply gas and air, and a zero governor that regulates the fuel supply pressure to the mixer at a constant level. With this structure, the valve is opened by the negative crankcase pressure of the engine, and gas is supplied to the engine only when the engine is operating.
携帯型ガスエンジン発電機は小型軽量ゆえに転倒し易く、負圧コックの作動負圧にクランクケース負圧を利用すると、クランクケース内の潤滑油が転倒時に負圧コック内に浸入し（潤滑油周りが生じ）作動不良を起こす場合があった。
これを回避するため、例えば特許文献１に記載されるように、ガスエンジン発電機において、クランクケースと別体のブリーザ室を設けて負圧を取り出し、転倒時に潤滑油が負圧コック内に浸入しない構造が提案されている。
Since the portable gas engine generator is small and lightweight, it is easy to tip over. If the negative pressure cock operating negative pressure is applied to the crankcase negative pressure, the lubricating oil in the crankcase will enter the negative pressure cock when it falls May cause malfunction.
In order to avoid this, as described in Patent Document 1, for example, in a gas engine generator, a breather chamber is provided separately from a crankcase to take out negative pressure, and lubricant falls into the negative pressure cock when it falls. No structure has been proposed.
しかしながら、小型軽量の携帯用ガスエンジン発電機の場合、ガスエンジン発電機本体内に別体のブリーザ室を設けることはスペース上困難である。
また、ゴム部品を多用する負圧コックは使用温度に限界があるため、発電機本体内に負圧コックを配置した場合、場所によってはエンジンまたはインバータ等電子装置からの熱影響を受け、使用温度の限界を超えてしまう可能性があり、配置場所に一段と配慮する必要があるという課題があった。
However, in the case of a small and light portable gas engine generator, it is difficult to provide a separate breather chamber in the gas engine generator body.
Also, since the negative pressure cock that uses a lot of rubber parts has a limited operating temperature, when the negative pressure cock is placed in the generator body, depending on the location, it may be affected by the heat from electronic devices such as engines or inverters. There is a possibility that it may exceed the limit, and there is a problem that it is necessary to further consider the arrangement location.
本発明は上記事情に鑑みて提案されたもので、小型軽量の携帯型エンジン発電機に適した燃料系システムのレイアウト構造を提供することを目的としている。 The present invention has been proposed in view of the above circumstances, and an object thereof is to provide a layout structure of a fuel system suitable for a small and light portable engine generator.
上記目的を達成するため請求項１は、エンジン（３０）を稼働して発電する発電部（４０）と、前記エンジン（３０）のクランク室（３１）の負圧を作動負圧として利用しエンジン（３０）に燃料を供給するための負圧燃料コック（１０）を備えた携帯型エンジン発電機において、次の構成を含むことを特徴としている。
前記負圧燃料コック（１０）は、前記携帯型エンジン発電機の転倒時における前記発電部（４０）の位置に対して前記クランク室（３１）の負圧取出口（３９）の反対側で、且つ、前後携帯型エンジン発電機の正立時において、前記負圧取出口（３９）よりも高い位置に配置されている。
更に、前記負圧燃料コック（１０）は、前記エンジン（３０）の冷却風取入口（４３）と、前記携帯型エンジン発電機（１）の外部カバー（２）に設けた冷却風取込用ルーバー（８）との間に配置されている。
In order to achieve the above object, a first aspect of the present invention is directed to an engine using a power generation unit (40) for generating power by operating an engine (30) and a negative pressure in a crank chamber (31) of the engine (30) as an operating negative pressure. A portable engine generator provided with a negative pressure fuel cock (10) for supplying fuel to (30) includes the following configuration.
The negative pressure fuel cock (10) is opposite to the negative pressure outlet (39) of the crank chamber (31) with respect to the position of the power generation unit (40) when the portable engine generator falls. In addition, when the front and rear portable engine generator is upright, it is disposed at a position higher than the negative pressure outlet (39).
Further, the negative pressure fuel cock (10) is provided for cooling air intake provided in a cooling air intake (43) of the engine (30) and an external cover (2) of the portable engine generator (1). It is arranged between the louvers (8).
請求項２は、請求項１の携帯型エンジン発電機において、前記エンジン（３０）の冷却風取入口（４３）は、前記エンジン（３０）を始動するためのリコイルプーリー（４４）を覆うカバー（ファンカバー４２）に設けたことを特徴としている。 In the portable engine generator according to claim 1, the cooling air intake (43) of the engine (30) covers a recoil pulley (44) for starting the engine (30). The fan cover 42) is provided.
請求項３は、請求項１の携帯型エンジン発電機において、前記エンジン（３０）は、ガスを燃料とするガスエンジンであることを特徴としている。 According to a third aspect of the present invention, in the portable engine generator according to the first aspect, the engine (30) is a gas engine using gas as fuel.
本発明によれば、携帯型エンジン発電機の転倒時において、発電部（４０）の位置に対して負圧取出口（３９）の反対側に負圧燃料コック（１０）が位置することで、クランク室内の潤滑油が負圧取出口（３９）から漏れた場合においても、負圧燃料コック（１０）が負圧取出口（３９）より高い位置となるので、負圧燃料コック（１０）へ潤滑油が流れることがない。 According to the present invention, when the portable engine generator falls, the negative pressure fuel cock (10) is positioned on the opposite side of the negative pressure outlet (39) with respect to the position of the power generation section (40). Even when the lubricating oil in the crank chamber leaks from the negative pressure outlet (39), the negative pressure fuel cock (10) is positioned higher than the negative pressure outlet (39), so that the negative pressure fuel cock (10) is moved to. Lubricant does not flow.
また、携帯型エンジン発電機の正立時において、負圧燃料コック（１０）が負圧取出口（３９）よりも高い位置に配置することで、携帯型エンジン発電機を転倒状態から正立状態に戻す時に、漏れた潤滑油を負圧燃料コック（１０）側へ流すことなくクランク室（３１）に戻すことができる。 Further, when the portable engine generator is upright, the negative pressure fuel cock (10) is arranged at a position higher than the negative pressure outlet (39), so that the portable engine generator is changed from the fall state to the upright state. When returning, the leaked lubricating oil can be returned to the crank chamber (31) without flowing to the negative pressure fuel cock (10) side.
更に、冷却風取入口（４３）と冷却風取込用ルーバー（８）との間に負圧燃料コック（１０）を配置することで、負圧燃料コック（１０）に冷却風を効率良く導くことができ、負圧燃料コック（１０）の温度上昇を防ぐことができる。 Further, by disposing the negative pressure fuel cock (10) between the cooling air intake port (43) and the cooling air intake louver (8), the cooling air is efficiently guided to the negative pressure fuel cock (10). The temperature increase of the negative pressure fuel cock (10) can be prevented.
以下、図面を参照して本発明を詳細に説明する。
図１は、本発明の一実施形態に係る携帯型ガスエンジン発電機の外観を示す斜視説明図である。
携帯型ガスエンジン発電機１は、外部カバー２内にガスエンジン発電機本体３を収納して構成されている。外部カバー２の前面側には、交流電源用の２個の出力端子４と、ガスエンジン発電機本体３を操作するための操作部５が形成された操作パネル６が装着されている。
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective explanatory view showing the appearance of a portable gas engine generator according to an embodiment of the present invention.
The portable gas engine generator 1 is configured by housing a gas engine generator body 3 in an external cover 2. On the front side of the outer cover 2, an operation panel 6 on which two output terminals 4 for AC power supply and an operation unit 5 for operating the gas engine generator main body 3 are formed is mounted.
外部カバー２の上側には、ハンドル部２ａが一体的に形成されるとともに、ハンドル部２ａの前面側にガスボンベ等からガスを供給可能とするガス取入口７が配置されている。
外部カバー２の両側面には、外部カバー２内に空気を取り込むための複数の冷却風取込用ルーバー８が形成されている。また、外部カバー２の一方の側面には、ガスエンジン発電機本体３を始動させるためのリコイルスタータ装置に連結された引き出し可能なグリップ９が配置されている。
On the upper side of the outer cover 2, a handle portion 2 a is integrally formed, and a gas inlet 7 is disposed on the front side of the handle portion 2 a so that gas can be supplied from a gas cylinder or the like.
A plurality of cooling air intake louvers 8 for taking air into the outer cover 2 are formed on both side surfaces of the outer cover 2. A pullable grip 9 connected to a recoil starter device for starting the gas engine generator main body 3 is disposed on one side surface of the outer cover 2.
外部カバー２に収納されるガスエンジン発電機本体３は、図２及び図３に示すように、ガスにより稼働するエンジン３０と、エンジン３０の前方側に位置しエンジン３０の回転から直流電圧を発電する発電部４０とから構成され、外部カバー２内には、燃料系システムとしての負圧燃料コック１０と、発電部４０で発電した直流電圧を交流電圧に変換するインバータ２０が設置されている。負圧燃料コック１０は弁構造を有し、ガス取入口７に接続されるチューブ１１、エンジン３０側へガスを供給する燃料供給チューブ１２、エンジン３０側の負圧を検知する負圧チューブ１４が弁構造に接続し、負圧で弁の開閉状態を制御することで、ガス取入口７から取り入れられるガスを燃料供給チューブ１２を介してエンジン３０へ供給する。
発電部４０とインバータ２０はケーブル２１で接続され、インバータ２０はケーブル２２を介して操作ユニット６の後面に設置されたＡＣユニット２３に接続されている。
As shown in FIGS. 2 and 3, the gas engine generator body 3 housed in the outer cover 2 generates a DC voltage from the engine 30 that is operated by gas and the rotation of the engine 30 that is located in front of the engine 30. The external cover 2 is provided with a negative pressure fuel cock 10 as a fuel system and an inverter 20 that converts a DC voltage generated by the power generation unit 40 into an AC voltage. The negative pressure fuel cock 10 has a valve structure, and includes a tube 11 connected to the gas inlet 7, a fuel supply tube 12 for supplying gas to the engine 30 side, and a negative pressure tube 14 for detecting negative pressure on the engine 30 side. By connecting to the valve structure and controlling the open / close state of the valve with negative pressure, the gas taken in from the gas intake 7 is supplied to the engine 30 via the fuel supply tube 12.
The power generation unit 40 and the inverter 20 are connected by a cable 21, and the inverter 20 is connected via a cable 22 to an AC unit 23 installed on the rear surface of the operation unit 6.
また、ガスエンジン発電機本体３における発電部４０の前方には、回転ファン４１が取り付けられている。回転ファン４１は円形皿状のファンカバー４２で覆われ、インバータ２０に臨むように配置されている。ファンカバー４２の周囲斜面には、半径方向に複数のスリット（冷却風取入口）４３が形成され、回転ファン４１によって冷却風取込用ルーバー８から外気が外部カバー２内に取り込まれ、更にスリット（冷却風取入口）４３からガスエンジン発電機本体３側に引き込まれるようになっている。
ファンカバー４２内には、エンジン３０を始動するためのリコイルスタータ装置のリコイルプーリー４４が収納され、グリップ９を引っ張ることで、プーリーが回転するように構成されている。
A rotary fan 41 is attached in front of the power generation unit 40 in the gas engine generator body 3. The rotary fan 41 is covered with a circular dish-shaped fan cover 42 and is disposed so as to face the inverter 20. A plurality of slits (cooling air intakes) 43 are formed in the radial direction around the fan cover 42, and outside air is taken into the outer cover 2 from the cooling air intake louver 8 by the rotating fan 41, and further slits are formed. A (cooling air intake) 43 is drawn into the gas engine generator main body 3 side.
A recoil pulley 44 of a recoil starter device for starting the engine 30 is housed in the fan cover 42, and the pulley is rotated by pulling the grip 9.
負圧燃料コック１０は、発電部４０の前面側に設置される回転ファン４１を覆うファンカバー４２に形成されたスリット（冷却風取入口）４３と、外部カバー２に設けた冷却風取込用ルーバー８との間に配置されている。
したがって、スリット（冷却風取入口）４３と冷却風取込用ルーバー８との間に負圧燃料コック１０が配置されることで、負圧燃料コック１０に冷却風を効率良く導くことができ、エンジン３０や発電部４０やインバータ２０の発熱により負圧燃料コック１０が温度上昇するのを防ぐことができる。
The negative pressure fuel cock 10 includes a slit (cooling air intake) 43 formed in a fan cover 42 that covers a rotating fan 41 installed on the front side of the power generation unit 40, and cooling air intake provided in the external cover 2. It is arranged between the louvers 8.
Therefore, by disposing the negative pressure fuel cock 10 between the slit (cooling air intake) 43 and the cooling air intake louver 8, the cooling air can be efficiently guided to the negative pressure fuel cock 10, It is possible to prevent the negative pressure fuel cock 10 from rising in temperature due to heat generated by the engine 30, the power generation unit 40, and the inverter 20.
エンジン３０は、クランク軸（図示せず）が回転するクランク室３１と、クランク軸に連結されたピストン（図示せず）が往復運動するシリンダ室３２と、吸気系に設置されるエアクリーナ３３、供給ガスと空気を混合するミキサー３４等を備え、負圧燃料コック１０の燃料供給チューブ１２を介して供給ガスと空気を混合するミキサー３４からシリンダ室３２上部にガスが供給される。
また、負圧燃料コック１０から燃料供給チューブ１２を介してエンジン側にガスが過剰供給状態となる場合に、ガスをエンジン３０のエアクリーナ３３へ逃がすためのブリーザチューブ１３が形成されている。
シリンダ室３２で燃焼したガスはクランク室３１からチューブ３５を介してエルボ３６に導かれ、マフラ室３７から排出される。マフラ室３７には、エンジン３０から引き出されている排気管に連結するマフラ３８が配置されている。マフラ３８の排気口は外部カバー２の後方に向けて配置されている。
The engine 30 includes a crank chamber 31 in which a crankshaft (not shown) rotates, a cylinder chamber 32 in which a piston (not shown) connected to the crankshaft reciprocates, an air cleaner 33 installed in an intake system, and supply A mixer 34 or the like that mixes gas and air is provided, and gas is supplied to the upper portion of the cylinder chamber 32 from the mixer 34 that mixes supply gas and air via the fuel supply tube 12 of the negative pressure fuel cock 10.
In addition, a breather tube 13 is formed for releasing gas to the air cleaner 33 of the engine 30 when the gas is excessively supplied from the negative pressure fuel cock 10 to the engine side via the fuel supply tube 12.
The gas combusted in the cylinder chamber 32 is guided from the crank chamber 31 to the elbow 36 through the tube 35 and discharged from the muffler chamber 37. The muffler chamber 37 is provided with a muffler 38 that is connected to an exhaust pipe drawn from the engine 30. The exhaust port of the muffler 38 is disposed toward the rear of the outer cover 2.
外部カバー２の後面には、複数の冷却風出口６１が設けられた後面パネル６０が装着され、外部カバー２内を通過してガスエンジン発電機本体３を冷却した空気が冷却風出口６１から排出されるようになっている。 A rear panel 60 provided with a plurality of cooling air outlets 61 is mounted on the rear surface of the outer cover 2, and air that has passed through the outer cover 2 and cooled the gas engine generator body 3 is discharged from the cooling air outlet 61. It has come to be.
クランク室３１の側方には、室内の負圧を取り出すための負圧取出口３９が設けられ、この負圧取出口３９に接続された負圧チューブ１４の他端が負圧燃料コック１０に接続されることで、エンジン３０のクランク室３１の負圧を作動負圧として利用して負圧燃料コック１０を開弁し、燃料供給チューブ１２を介してエンジン３０にガス燃料を供給するように構成されている。 A negative pressure outlet 39 for taking out the negative pressure in the room is provided on the side of the crank chamber 31, and the other end of the negative pressure tube 14 connected to the negative pressure outlet 39 is connected to the negative pressure fuel cock 10. By being connected, the negative pressure fuel cock 10 is opened using the negative pressure in the crank chamber 31 of the engine 30 as the operating negative pressure, and gas fuel is supplied to the engine 30 via the fuel supply tube 12. It is configured.
また、負圧燃料コック１０は、携帯型ガスエンジン発電機１の転倒時における発電部４０の位置に対してクランク室３１の負圧取出口３９の反対側に形成され、且つ、携帯型ガスエンジン発電機１の正立時において、負圧取出口３９よりも高い位置に形成されている。これは、携帯型ガスエンジン発電機１が横転した場合に、クランク室３１内の潤滑油が負圧チューブ１４内に漏れ出して負圧燃料コック１０に流れることによる動作不良等を回避するためである。 Further, the negative pressure fuel cock 10 is formed on the opposite side of the negative pressure outlet 39 of the crank chamber 31 with respect to the position of the power generation unit 40 when the portable gas engine generator 1 falls, and the portable gas engine 10 When the generator 1 is upright, it is formed at a position higher than the negative pressure outlet 39. This is to avoid malfunctions caused by the lubricating oil in the crank chamber 31 leaking into the negative pressure tube 14 and flowing into the negative pressure fuel cock 10 when the portable gas engine generator 1 rolls over. is there.
次に、携帯型ガスエンジン発電機１が横転した場合について、図４を参照しながら説明する。図４の中央の携帯型ガスエンジン発電機１は、図３と同様に、携帯型ガスエンジン発電機１の正立時を前面側から観た説明図であり、エンジン３０のクランク室３１に存在する潤滑油の油面Ｘは、点線位置の高さを維持している。 Next, the case where the portable gas engine generator 1 rolls over will be described with reference to FIG. The portable gas engine generator 1 in the center of FIG. 4 is an explanatory view of the portable gas engine generator 1 as viewed from the front side when the portable gas engine generator 1 is upright, and is present in the crank chamber 31 of the engine 30. The oil surface X of the lubricating oil maintains the height of the dotted line position.
この状態から左側に横転すると図４の左位置に表示した携帯型ガスエンジン発電機１の状態となり、潤滑油が負圧取出口３９に流れ込み、油面Ｘを点線位置の高さに維持して負圧チューブ１４内（図におけるＵ字状部分）に貯留することになる（貯留部位を斜線で示す）。この場合、負圧燃料コック１０は、携帯型ガスエンジン発電機１の転倒時における発電部４０の位置に対してクランク室３１の負圧取出口３９の反対側に形成されているため、負圧取出口３９に対して上側に負圧燃料コック１０が位置するため、負圧燃料コック１０に潤滑油が流れ込むことはない。 If this rolls over to the left side from this state, the portable gas engine generator 1 shown in the left position in FIG. 4 is brought into a state. It is stored in the negative pressure tube 14 (U-shaped portion in the figure) (the storage site is indicated by hatching). In this case, since the negative pressure fuel cock 10 is formed on the opposite side of the negative pressure outlet 39 of the crank chamber 31 with respect to the position of the power generation unit 40 when the portable gas engine generator 1 falls, the negative pressure is reduced. Since the negative pressure fuel cock 10 is positioned on the upper side with respect to the outlet 39, the lubricating oil does not flow into the negative pressure fuel cock 10.
また、この状態（横転状態）から携帯型ガスエンジン発電機１を正立状態に戻すに際しては、携帯型ガスエンジン発電機１の正立時において、負圧燃料コック１０が負圧取出口３９よりも高い位置に配置されているので、負圧チューブ１４内に漏れ出た潤滑油を負圧燃料コック１０側へ流すことなくクランク室３１に戻すことができる。 Further, when the portable gas engine generator 1 is returned to the upright state from this state (the rollover state), the negative pressure fuel cock 10 is more than the negative pressure outlet 39 when the portable gas engine generator 1 is upright. Since it is disposed at a high position, the lubricating oil leaked into the negative pressure tube 14 can be returned to the crank chamber 31 without flowing to the negative pressure fuel cock 10 side.
一方、中央の状態から右側に横転すると図４の右位置に表示した携帯型ガスエンジン発電機１の状態となるが、負圧燃料コック１０は、携帯型ガスエンジン発電機１の転倒時における発電部４０の位置に対してクランク室３１の負圧取出口３９の反対側に形成されているため、負圧取出口３９が潤滑油の油面Ｘより上側に位置するため負圧取出口３９に流れ込む（漏れ出る）ことはない。 On the other hand, when the vehicle rolls over to the right side from the center state, the portable gas engine generator 1 displayed at the right position in FIG. 4 is brought into the state, but the negative pressure fuel cock 10 generates power when the portable gas engine generator 1 falls. Since it is formed on the opposite side of the negative pressure outlet 39 of the crank chamber 31 with respect to the position of the portion 40, the negative pressure outlet 39 is located above the oil level X of the lubricating oil, so It does not flow (leak).
上述した携帯型ガスエンジン発電機１によれば、エンジン３０の燃料系システムとしての負圧燃料コック１０の配置位置を工夫することにより、別体のブリーザ室を設けることなく、転倒時における潤滑油周りを防止することができる。
また、負圧燃料コック１０の冷却性を向上させることで、使用温度範囲内で負圧燃料コック１０を使用することで信頼性の確保を図ることができる。
According to the portable gas engine generator 1 described above, by devising the arrangement position of the negative pressure fuel cock 10 as a fuel system system of the engine 30, the lubricating oil at the time of falling without providing a separate breather chamber. The surroundings can be prevented.
Further, by improving the cooling performance of the negative pressure fuel cock 10, it is possible to ensure reliability by using the negative pressure fuel cock 10 within the operating temperature range.
１…携帯型ガスエンジン発電機、 ２…外部カバー、 ３…ガスエンジン発電機本体、 ４…出力端子、 ５…操作部、 ６…操作パネル、 ７…ガス取入口、 ８…冷却風取込用ルーバー、 ９…グリップ、 １０…負圧燃料コック、 １２…燃料供給チューブ、 １４…負圧チューブ、 ２０…インバータ、 ３０…エンジン、 ３１…クランク室、 ３２…シリンダ室、 ３９…負圧取出口、 ４０…発電部、 ４１…回転ファン、 ４２…ファンカバー（カバー）、 ４３…スリット（冷却風取入口）、 ４４…リコイルプーリー。 DESCRIPTION OF SYMBOLS 1 ... Portable gas engine generator, 2 ... External cover, 3 ... Gas engine generator main body, 4 ... Output terminal, 5 ... Operation part, 6 ... Operation panel, 7 ... Gas inlet, 8 ... Cooling air intake Louver, 9 ... grip, 10 ... negative pressure fuel cock, 12 ... fuel supply tube, 14 ... negative pressure tube, 20 ... inverter, 30 ... engine, 31 ... crank chamber, 32 ... cylinder chamber, 39 ... negative pressure outlet, DESCRIPTION OF SYMBOLS 40 ... Power generation part, 41 ... Rotating fan, 42 ... Fan cover (cover), 43 ... Slit (cooling air intake), 44 ... Recoil pulley.
外部カバー２に収納されるガスエンジン発電機本体３は、図２及び図３に示すように、ガスにより稼働するエンジン３０と、エンジン３０の前方側に位置しエンジン３０の回転から直流電圧を発電する発電部４０とから構成され、外部カバー２内には、燃料系システムとしての負圧燃料コック１０と、発電部４０で発電した直流電圧を交流電圧に変換するインバータ２０が設置されている。負圧燃料コック１０は弁構造を有し、ガス取入口７に接続されるチューブ１１、エンジン３０側へガスを供給する燃料供給チューブ１２、エンジン３０側の負圧を検知する負圧チューブ１４が弁構造に接続し、負圧で弁の開閉状態を制御することで、ガス取入口７から取り入れられるガスを燃料供給チューブ１２を介してエンジン３０へ供給する。
発電部４０とインバータ２０はケーブル２１で接続され、インバータ２０はケーブル２２を介して操作パネル６の後面に設置されたＡＣユニット２３に接続されている。
As shown in FIGS. 2 and 3, the gas engine generator body 3 housed in the outer cover 2 generates a DC voltage from the engine 30 that is operated by gas and the rotation of the engine 30 that is located in front of the engine 30. The external cover 2 is provided with a negative pressure fuel cock 10 as a fuel system and an inverter 20 that converts a DC voltage generated by the power generation unit 40 into an AC voltage. The negative pressure fuel cock 10 has a valve structure, and includes a tube 11 connected to the gas inlet 7, a fuel supply tube 12 for supplying gas to the engine 30 side, and a negative pressure tube 14 for detecting negative pressure on the engine 30 side. By connecting to the valve structure and controlling the open / close state of the valve with negative pressure, the gas taken in from the gas intake 7 is supplied to the engine 30 via the fuel supply tube 12.
The power generation unit 40 and the inverter 20 are connected by a cable 21, and the inverter 20 is connected via a cable 22 to an AC unit 23 installed on the rear surface of the operation panel 6.
Claims (3)
前記負圧燃料コック（１０）は、
前記携帯型エンジン発電機の転倒時における前記発電部（４０）の位置に対して前記クランク室（３１）の負圧取出口（３９）の反対側で、且つ、
前後携帯型エンジン発電機の正立時において、前記負圧取出口（３９）よりも高い位置であって、
前記エンジン（３０）の冷却風取入口（４３）と、前記携帯型エンジン発電機の外部カバー（２）に設けた冷却風取込用ルーバー（８）との間に
配置したことを特徴とする携帯型エンジン発電機。 A power generation unit (40) that operates the engine (30) to generate power, and a negative pressure for supplying fuel to the engine (30) using the negative pressure in the crank chamber (31) of the engine (30) as an operating negative pressure. In a portable engine generator equipped with a pressure fuel cock (10),
The negative pressure fuel cock (10)
On the opposite side of the negative pressure outlet (39) of the crank chamber (31) with respect to the position of the power generation unit (40) when the portable engine generator falls, and
When the front and rear portable engine generator is upright, the position is higher than the negative pressure outlet (39),
It is arranged between the cooling air intake (43) of the engine (30) and the cooling air intake louver (8) provided in the external cover (2) of the portable engine generator. Portable engine generator.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012168349A JP5840577B2 (en) | 2012-07-30 | 2012-07-30 | Portable engine generator |
| US13/889,861 US8985069B2 (en) | 2012-07-30 | 2013-05-08 | Portable engine generator |
| CN201310322315.3A CN103573494B (en) | 2012-07-30 | 2013-07-29 | Portable gas-engine generator |
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| JP2012168349A JP5840577B2 (en) | 2012-07-30 | 2012-07-30 | Portable engine generator |
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| JP5840577B2 JP5840577B2 (en) | 2016-01-06 |
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| JP2012168349A Expired - Fee Related JP5840577B2 (en) | 2012-07-30 | 2012-07-30 | Portable engine generator |
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| US (1) | US8985069B2 (en) |
| JP (1) | JP5840577B2 (en) |
| CN (1) | CN103573494B (en) |
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| US11187147B2 (en) | 2018-09-06 | 2021-11-30 | Honda Motor Co., Ltd. | Work machine |
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| USD749805S1 (en) | 2013-10-08 | 2016-02-16 | Briggs & Stratton Corporation | Pressure washer |
| USD742080S1 (en) | 2013-10-16 | 2015-10-27 | Briggs & Stratton Corporation | Pressure washer |
| CN111542691A (en) * | 2017-12-19 | 2020-08-14 | 本田技研工业株式会社 | Engine generator |
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| JP2001193610A (en) * | 2000-01-12 | 2001-07-17 | Kioritz Corp | Mixture generator |
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| US20140026828A1 (en) | 2014-01-30 |
| JP5840577B2 (en) | 2016-01-06 |
| US8985069B2 (en) | 2015-03-24 |
| CN103573494A (en) | 2014-02-12 |
| CN103573494B (en) | 2015-12-02 |
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